Circuit Breakers

Having an effective and well-designed circuit protection system in every building is vital. It not only protects machinery and equipment from costly damage or even worse an electrical fire, but good circuit protection also ensures people are safe too.

Here, at RS we stock an extensive range of high-quality products within our circuit breaker range. They include various types of protection devices as well as consumer units, distribution boards and accessories. Whether you are designing and building a new system or maintaining an old one we have everything you need, providing the perfect end-to-end solution.

What are the different types of circuit breakers?

RCBO Breakers

RCBO stands for Residual Current Circuit Breaker with Over Current protection. Installed in consumer units they protect from short circuits, overload current and residual current as they combine all the functions of an MCB and an RCCB.

RCCB Breakers

RCCB stands for Residual Current Circuit Breaker. They are designed to quickly disconnect any circuit as soon as current leaks to the earthing wire. RCCBs are also effective in protecting from electrocution or shock from direct contact.

MCB Breakers

MCB stands for Miniature Circuit Breaker. They are designed to protect an electric circuit from overcurrent only. They do not safeguard people from electric shock caused by earth leakage.

MCCB Breakers

MCCB stands for Moulded Case Circuit Breaker. They are another type of electrical protection device used in higher current rating applications where an MCB would not suffice. An MCCB protects against overload and short circuit faults. With its high breaking capacity and a wider range of current ratings, MCCBs are typically found in industrial systems rather than domestic systems.

Busbar Feed & Tap-Off Units
Busbar Feed & Tap-Off Units
Busbar Trunking
Busbar Trunking
Busbar Trunking Accessories
Busbar Trunking Accessories
Busbars
Busbars
Circuit Breaker Accessories
Circuit Breaker Accessories
Circuit Trips
Circuit Trips
Consumer Units
Consumer Units
Distribution Boards
Distribution Boards
Electronic Circuit Breakers
Electronic Circuit Breakers
Energy Monitoring Devices
Energy Monitoring Devices
MCBs
MCBs
MCCBs
MCCBs
RCBOs
RCBOs
RCCBs
RCCBs
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

35852 Products showing for Circuit Breakers

1692 of 999+
Temporarily out of stock
Better World
Siemens SENTRON 5SL4 MCB, 3+N, 10A Curve B, 400V AC, 72V DC
  • RS Stock No. 210-3387
  • Mfr. Part No. 5SL4610-6
Each
HK$1,177.50
Temporarily out of stock
Eaton RCBO, 6A Current Rating, 4P Poles, 30mA Trip Sensitivity, Type A, Type D, FRBm6 Range
  • RS Stock No. 123-028
  • Mfr. Part No. 171008 FRBM6-D6/3N/003-A
Each
HK$2,093.26
Temporarily out of stock
Eaton xEffect FAZ MCB, 4P, 63A Curve C, 400V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 242-994
  • Mfr. Part No. 190794 FAZ-C63/4-NA
Each
HK$3,878.39
In Stock
ABB RCBO, 20A Current Rating, 2P Poles, 30mA Trip Sensitivity
  • RS Stock No. 231-9936
  • Mfr. Part No. 2CSR255151R1205 DSE201 B20 A30
Each
HK$600.00
In Stock
Eaton xPole PXL, S200 MCB, 2P, 10A Curve B, 400V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 490-068
  • Mfr. Part No. 236227 PXL-B10/2
Each
HK$408.70
Temporarily out of stock
ABB High Performance S800N MCB, 2P, 63A Curve D, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 435-257
  • Mfr. Part No. 2CCS892001R0631 S802N-D63
Each
HK$1,577.00
Temporarily out of stock
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 63A Curve B, 440V AC, 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-2134
  • Mfr. Part No. A9F06263
Each
HK$1,296.80
In Stock
TE Connectivity Thermal Circuit Breaker - W51 Single Pole 250V ac Voltage Rating, 10A Current Rating
  • RS Stock No. 782-8044
  • Mfr. Part No. W51-A122B1-10
Each
HK$46.90
Temporarily out of stock
Better World
ABB, XT4L MCCB 4P 160A, Fixed Mount
  • RS Stock No. 236-6737
  • Mfr. Part No. 1SDA068394R1 XT4L 160 TMA 160A FF
Each
HK$11,441.70
Temporarily out of stock
Siemens, SENTRON MCCB 3P 800A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4848
  • Mfr. Part No. 3VA2580-6HK32-0AA0
Each
HK$68,776.20
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 500A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 257-583
  • Mfr. Part No. 3VA5450-6EF41-0AA0
Each
HK$32,645.50
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 50A, Fixed Mount
  • RS Stock No. 260-9534
  • Mfr. Part No. C10R3TM050
Each
HK$9,451.45
Temporarily out of stock
Hager Hager HMX Circuit Breaker, 3P, 25A Curve C, 415V AC, 50 kA Breaking Capacity
  • RS Stock No. 599-782
  • Mfr. Part No. HMX325
Each
HK$5,927.20
Temporarily out of stock
Siemens, SENTRON MCCB 3P 630A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 270-4811
  • Mfr. Part No. 3VA2563-5MQ32-0AA0
Each
HK$68,608.60
Temporarily out of stock
Schneider Electric, PowerPact MCCB 2P 25A, Breaking Capacity 35 kA, Clip-On
  • RS Stock No. 341-570
  • Mfr. Part No. BGF26025
Each
HK$6,372.37
In Stock
Better World
ABB System Pro M Compact S200M MCB, 4P, 16A Curve B, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 746-8084
  • Mfr. Part No. 2CDS274001R0165 S204M-B16
Each
HK$1,075.10
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 125A, Fixed Mount
  • RS Stock No. 236-6736
  • Mfr. Part No. 1SDA068393R1 XT4L 160 TMA 125A FF
Each
HK$10,485.90
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA2, 3 channels
  • RS Stock No. 156-668
  • Mfr. Part No. 3VA2325-0HM32-0AA0
Each
HK$27,145.70
In Stock
Schneider Electric RCBO, 20A Current Rating, 1P Poles, 30mA Trip Sensitivity, Acti9 Range
  • RS Stock No. 222-8513
  • Mfr. Part No. SEE120B03
Each
HK$574.40
Temporarily out of stock
ABB Tmax XT Front Terminal for use with Tmax XT
  • RS Stock No. 237-6273
  • Mfr. Part No. 1SDA067189R1 FC CuAl 2x150 XT3 6PCS
Each
HK$2,791.67
1
1692
1793
Results per page